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Tomorrow’s world: Fiat's MultiAir engine tech

By Jesse Crosse Motor Industry 14 October 2009 16:50 Fiat this year launches what it claims is a big step forward in variable valve timing: MultiAir. It's the first time that a manufacturer has made a properly variable valve system a production reality, and will slowly be rolled out across most of Fiat's and Alfa's car ranges.How does Fiat's MultiAir vary from existing variable valve timing (VVT) systems?Current VVT systems rely on mechanical systems to open and close the valves. Engineers have long understood the benefits of changing valve opening and closing times to tweak an engine's power and emissions performance, depending on the need for power or parsimony.Valves are an engine's nose and mouth – it inhales through inlet valves and exhales through exhaust valves.

BMW Concept M5 (2011) first official pictures

This is the new BMW M5 super saloon. Or at least it's the BMW Concept M5, a show car that will be unveiled at this month's 2011 Shanghai auto show, and a preview of how the production M5 will look. Apart from the darkened wheels and lack of interior, this Concept M5 mirrors the real M5 almost 100%.

RCA Future Car Challenge 2021

London's Royal Automobile Club (RAC) is hosting an exhibition of artwork created by students enrolled in the RCA's Vehicle Design program. The artwork is intended to complement the RAC's Future Car Challenge, which will take place tomorrow, Saturday November 5, the day before the historical London to Brighton Veteran Car Run. The challenge requires entrants to drive a 60-mile route from Brighton to London using the least amount of energy and will see a wide range of energy-efficient vehicles participate.